公开(公告)号：US07109710B2

公开(公告)日：2006-09-19

申请号：US10756592

申请日：2004-01-13

申请人： Dashen Chu ,  Recardo Matias ,  Travis Monke ,  Phillip E. Steen ,  Fraser J. L. Robb

发明人： Dashen Chu ,  Recardo Matias ,  Travis Monke ,  Phillip E. Steen ,  Fraser J. L. Robb

IPC分类号： G01V3/00

CPC分类号： G01R33/54 ,  G01R33/3415

摘要： A method and apparatus is disclosed to analogically combine MR signals from RF coils to form multiple sets of analogically combined MR signals, and then digitally combine the analogically combined sets of MR signals to provide a digitized signal set for image reconstruction. The analogical combining followed by the digital combining of acquired MR signals improves intrinsic SNR of the RF coils used for data acquisition from a field-of-view (FOV) without compromising FOV for simultaneous MR data acquisition.

摘要翻译： 公开了一种方法和装置，以模拟地组合来自RF线圈的MR信号以形成多组模拟组合MR信号，然后数字地组合MR信号的模拟组合以提供用于图像重建的数字化信号集。 所采用的MR信号的数字组合之后的模拟组合提高了用于从视场（FOV）进行数据采集的RF线圈的固有SNR，而不会影响同时MR数据采集的FOV。

公开(公告)号：US07171254B2

公开(公告)日：2007-01-30

申请号：US10249208

申请日：2003-03-21

申请人： Robert M. Vavrek ,  Ceylan C. Guclu ,  Phillip E. Steen

发明人： Robert M. Vavrek ,  Ceylan C. Guclu ,  Phillip E. Steen

IPC分类号： A61B5/05

CPC分类号： G01R33/3415 ,  G01R33/341 ,  G01R33/5659

摘要： The present invention provides a system and method of improved homogeneity whereby at least a portion of an RF coil is filled with homogeneity enhancing material. Disposing the homogeneity enhancing material, such as perfluorocarbon, within the RF coil, implementation of thick saturation pads may be avoided altogether or thinner pads may be used to fill any voids between the patient and the coil. The present invention is particularly useful in a CTL coil assembly for acquiring diagnostic data of the neck region of a patient. However, the advantages achieved by the present invention may be incorporated into other surface coils for other anatomical regions where control of the susceptibility is desired. Additionally, the homogeneity enhancing material also acts as a heat sink for any hot spots on the coil.

摘要翻译： 本发明提供了改进的均匀性的系统和方法，由此至少一部分RF线圈被均匀性增强材料填充。 将均匀性增强材料（例如全氟化碳）置于RF线圈内，可以完全避免实施厚饱和焊盘，或者可以使用较薄的焊盘来填充患者和线圈之间的任何空隙。 本发明在用于获取患者颈部区域的诊断数据的CTL线圈组件中特别有用。 然而，本发明实现的优点可以并入其它表面线圈，用于需要敏感性控制的其它解剖区域。 此外，均匀性增强材料还用作线圈上任何热点的散热器。

公开(公告)号：US5432449A

公开(公告)日：1995-07-11

申请号：US23259

申请日：1993-02-25

申请人： John E. Ferut ,  Kenneth W. Belt ,  Phillip E. Steen ,  Johnny E. Parham, III ,  John A. Wolak ,  Howard R. Wagner

发明人： John E. Ferut ,  Kenneth W. Belt ,  Phillip E. Steen ,  Johnny E. Parham, III ,  John A. Wolak ,  Howard R. Wagner

IPC分类号： G01R33/58 ,  G01R33/20

CPC分类号： G01R33/58

摘要： A fixture for testing a magnetic resonance imaging system comprises a mounting plate for positioning the fixture within the system. The mounting plate has a plurality of apertures each of which being adapted to receive a test coil. The test coil includes a housing having a section that can fit within each mounting plate aperture and a receptor for holding a test substance. A coil with a plurality of turns of a conductor is located with the housing and an electrically conductive shield extends around the coil. One or more nestable spacer modules are provided to fit with a mounting plate aperture and receive the test coil to maintain the test coil a defined distance from the mounting plate.

摘要翻译： 用于测试磁共振成像系统的夹具包括用于将所述夹具定位在所述系统内的安装板。 安装板具有多个孔，每个孔适于接收测试线圈。 测试线圈包括具有可以装配在每个安装板孔内的部分的壳体和用于保持测试物质的受体。 具有导体的多个匝的线圈与壳体一起定位，并且导电屏蔽围绕线圈延伸。 提供一个或多个可嵌套的间隔件模块以与安装板孔相配合并且接收测试线圈以将测试线圈保持与安装板的限定距离。